Machine for chamfering and crozing tubs



(No Model.) 2 Sheets-Sheet 1.

T. F. HUMMEL & W. S. MORSE. MACHINE FOR OHAMFERING AND OROZING TUBS. 7

Patented Sept. 10, 1895.

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(No Modi.) 2 Sheets-Sheet 2. T. P. HUMMEL 8a W. S. MORSE. MACHINE FOR GHAMPERING AND GROZING TUBS.

Patented Sept. 10, 1895.

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THEODORE F. HUMMEL AND WILLIAM S. MORSE, OF FREMONT, NEBRASKA.

MACHINE FOR CHAMFERING AND CROZING TUBS.

SPECIFICATION forming part of Letters Patent No. 546,155, dated September 10, 1895.

Application filed May 6, 1895. $eria11lo. 548,336- (No model.)

To all whom it may concern:

Be it known that we, THEODORE F. HUM- MEL and WILLIAM S. Monsn, both of Fremont, in the county of Dodge and State of Nebraska, have invented a new and Improved Machine for Ohamfering and Crozing Tubs, of which the following is a full, clear, and exact description.

The invention relates to coopering, and its object is to provide a new and improved machine for chamferin g and crozing tubs andlike articles larger at one end than at the other, the machine being comparatively simple and durable in construction, very effective in operation, and arranged to chamfer and trim the ends of a tub at one time and before the tub is removed from the machine.

The invention consists principally of three cutter-heads, one of which serves to chamfer and croze the article at the small end, the

second cutter-head serves to chamfer the inside at the large end, and the third is used for chamfering the outside on the large end of the tub.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of the improvement. Fig. 2 is an enlarged perspective View of part of the improvement, showing the tub in position, with parts broken out. Fig. 3 is an end elevation of the improvement with parts broken out, and Fig. a is a rear elevation of part of the improvement.

The improved machine is provided with a table A mounted on legs A and provided on its top with longitudinal guideways, on which are fitted to slide longitudinally the carriages B and O on the front and rear end of the machine. The carriages B and G are pivotally connected at their under side with links D D respectively, extending toward each other, and pivotally connected with an arm D secured on a transversely extending shaft D journaled in suitable bearin gs attached to the under side of the table A at or near the middle thereof.

On the front end of the shaft D is secured a handle D adapted to be taken hold of by the operator, to turn the shaft D so as to cause the arm D to pull or push on the links D D and move the carriages B and G simultaneously toward or from each other.

On the top of the carriage B is journaled in suitable bearings a shaft E, carrying a pulley E, engaged by a belt E connected with suitable machinery for imparting a rotary motion to the said shaft E whenever required, as hereinafter more fully described.

The inner end of the shaft Eis adapted to receive a disk F, made of iron, wood, or other material, and of a size corresponding approximately to the large end of the tub G to be chamfered and crozed, the said disk F, being adapted to pass into the tapering tub G a suitable distance, as indicated in Fig. 2, so as to be firmly seated in the said tub to rotate the latter when the shaft E is revolved.

Previous to the disk F passing into the tub G, the latter is placed on transversely-eaten ding supports H, arranged between the carriages B and C to temporarily hold the tub in place. The supporting-arms H are attached to vertically-disposed rods H held adjustable in bearings H forming part of the table A.

At one side of the supporting-arms H and opposite the disk F is arranged a chuck-ring I, adapted to be engaged by the small end of the tub G, the said chuck-ringl being held in a suitable circular frame I attached to the table A. A ring G, near the small end of the tub G, is adapted to abut against the front face of the ring 1 tolimit the rearward movement of the tub. Now it will be seen that as the ringI is concentric to the disk F and the latter is moved in engagement with the said tub G, supported loosely on the arms H, the said tub is centered and pushed rearward into the ring I, so as to be in proper position for the chamfering and crozing. It is understood that when the operator moves the lever D from left to right, the two carriages B and O are moved toward each other to cause the disk F to engage the tub G and to press the small end thereof into the ring I, so as to level the tub on the machine.

On the carriage O is mounted to slide transversely a bed J, provided with a bolt J, engaging a slot K in the end of a lever K, fulcrumed at K on the carriage G, as plainly illustrated in Figs. 3 and l. This lever K extends transversely and to the front of the machine, so as to be under the control of the operator.

On the bed J are arranged bearings for a longitudinally-extending shaft L, provided with pulley L, connected by a belt L with suitable machinery for imparting a rotary motion to the said shaft L. On the front end of the shaft L is secured a beveled cutter-head N, alongside of which is arranged a small circular saw N, the said cutter-head extending through the open ring I to engage the inside of the small end of the tub G to chamfer and croze the same, the saw N serving to cut off the inner end of the tub as the latter is rotated. It will be seen that by manipulating the lever K the bed J may be moved transversely to move the cutter-head N and saw N into or out of engagement with the tub G.

'In order to chamfer the inside of the large end of the tub G a cutter-head O is provided, secured on a longitudinally-extending shaft 0, journaled in a frame P, held to slide on and to turn with a shaft P mounted to rock in bearings attached to the rear of the table A, as is plainly indicated in Figs. 1, 3, and 4c.

In order to impart a rocking motion to the frame P an arm P is attached to slide longitudinally of the shaft P, (see Figs. 3 and 4,) and this arm is pivotally connected by a link P with the lever K above its fulcrum K as plainly indicated in Fig. 3. Now it will be seen that by the operator manipulating the lever K a transverse swinging motion can be given to the frame P to move the cutter-head O in or out of contact with the interior surface of the tub G.

In order to obviate too great a torsional strain on the shaft P, we may provide the shaft at its end, opposite that engaged by connections with the lever K, with a crank-arm a, from which a link a extends to a hand-lever a which an assistant may operate when the lever K is operated.

On the shaft 0 is secured a pulley 0 under which passes a driving-belt 0 connected With suitable machinery for imparting a rotary motion to the said shaft 0' and the cutterhead 0 held thereon. The driving-belt 0 also engages a pulley Q, secured on a shaft Q, journaled in the frame P, and parallel to the shaft 0. On this shaft Q is secured a cutter-head R, adapted to engage the outside of the tub G at the large end thereof, and alongside this cutter-head is arranged a circular saw R to trim ofl the large end of the tub, so as to render all the tubs the same length, as both ends are trimmed by the saws N and R.

In using the machine the tub is first supported on the arms H, then engaged by the disk F by the operator moving the lever D from left to right to level and center the tub in the ring I. The operator then raises the lever Kto impart a transverse sliding movement to the bed J, to bring the cutter-head N and saw I in engagement with the inside of the tub at the small end thereof, and to chamfer and croze the tub and trim the end thereof, as previously explained.

It will further be seen that when the lever K is raised, as previously explained, the link P imparts a transverse swinging motion to the frame P to move the cutterhead O in engagement with the inside of the tub G to chamfer this end of the tub outside of the disk F at the same time that the other end of the tub G is chamfered and crozed. When this has been done, the operator presses the lever K to move the cutter-heads N and 0 out of engagement with the inside of the tub G and to cause the framePto swing forward to bring the cutter-head R and saw R in engagement with the large end of the tub to chain for the latter on the outside and to cutoff the large end. The operator then moves the lever D from the right to the left to disengage the disk F from the tub G and release the lat ter from the ring I to permit of removing the tub and of placing another upon the arms II. The abovedescribed operation is then re peated.

It is understood that while the machine is in operation the several cutter-heads are constantly in motion during the time the tubs are put in or taken out of the machine.

It is further understood that as the disk F is firmly seated in the tub the latter is rotated whenever the belt E is set in motion, the tub, however, having but about thirty to forty revolutions per minute, while the cutter-heads will have a speed of about three thousand revolutions per minute.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent 1. In a machine for chamfering and cloningand means for moving the swinging frame and transverse frame in unison, substantially as shown and described.

2. The combination with a bed or frame. of the disk supporting carriage, the chuck supporting carriage, means for imparting movement to said carriages in unison, a cutter sup porting carriage, movable transversely 011 the chuck supporting carriage, a swinging frame supporting cutters, a rock shaft on which the swinging frame is mounted, a leverfor moving the tmnsverse carriage, and a link extended from said lever to the rock shaft whereby the swinging frame may be moved in unison with said transverse carriage, substantially as shown and described.

THEODORE F. HUMMEL. WVILLIAM S. MORSE.

Witnesses:

WILLIAM. J. COURTRIGHT, ADELE A. HASTORF. 

